Strong Match — 87.7% match
based on chemical composition and mechanical property overlap.
ASTM A959 443 (ASTM A959:2011) and BS 970 EN61 (BS 970:1955) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 443 is defined under ASTM International, originating from United States, while BS 970 EN61 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, ASTM A959 443 vs BS 970 EN61 is a 87.7% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 87.7%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A959 443
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
BS 970 EN61
Not documented
Key Differences
ASTM A959 443 specifies Cu which is not specified for BS 970 EN61.
Can ASTM A959 443 Be Substituted With BS 970 EN61?
ASTM A959 443 and BS 970 EN61 overlap closely enough on chemistry and mechanical properties that BS 970 EN61 is often considered as a substitute for ASTM A959 443 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between ASTM A959 443 and BS 970 EN61?
ASTM A959 443 specifies Cu which is not specified for BS 970 EN61.
Can ASTM A959 443 be substituted with BS 970 EN61?
ASTM A959 443 and BS 970 EN61 overlap closely enough on chemistry and mechanical properties that BS 970 EN61 is often considered as a substitute for ASTM A959 443 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.